I have a lovely boyfriend but no matter what I do I can't get him properly aroused. There I was joyfully licking his balls (something which has never failed to arouse other men I've been with) & did his cock stir? No! We kiss quite passionately, try just about everything, he does great oral etc but I just can't seem to get him hard. He's 51, quite fit & doesn't drink or smoke. He doesn't want to take viagra, preferring to work on it 'naturally' but it just doesn't happen. Piv sex is really important to me. He's so lovely in all other ways I'd hate to split up over this but it is a dealbreaker for me. He always makes sure I have an orgasm but without that penis it's just not enough. What can I do?